/*

 * jQuery Nivo Slider v2.6

 * http://nivo.dev7studios.com

 *

 * Copyright 2011, Gilbert Pellegrom

 * Free to use and abuse under the MIT license.

 * http://www.opensource.org/licenses/mit-license.php

 * 

 * March 2010

 */



(function($) {



    var NivoSlider = function(element, options){

		//Defaults are below

		var settings = $.extend({}, $.fn.nivoSlider.defaults, options);



        //Useful variables. Play carefully.

        var vars = {

            currentSlide: 0,

            currentImage: '',

            totalSlides: 0,

            randAnim: '',

            running: false,

            paused: false,

            stop: false

        };

    

        //Get this slider

        var slider = $(element);

        slider.data('nivo:vars', vars);

        slider.css('position','relative');

        slider.addClass('nivoSlider');

        

        //Find our slider children

        var kids = slider.children();

        kids.each(function() {

            var child = $(this);

            var link = '';

            if(!child.is('img')){

                if(child.is('a')){

                    child.addClass('nivo-imageLink');

                    link = child;

                }

                child = child.find('img:first');

            }

            //Get img width & height

            var childWidth = child.width();

            if(childWidth == 0) childWidth = child.attr('width');

            var childHeight = child.height();

            if(childHeight == 0) childHeight = child.attr('height');

            //Resize the slider

            if(childWidth > slider.width()){

                slider.width(childWidth);

            }

            if(childHeight > slider.height()){

                slider.height(childHeight);

            }

            if(link != ''){

                link.css('display','none');

            }

            child.css('display','none');

            vars.totalSlides++;

        });

        

        //Set startSlide

        if(settings.startSlide > 0){

            if(settings.startSlide >= vars.totalSlides) settings.startSlide = vars.totalSlides - 1;

            vars.currentSlide = settings.startSlide;

        }

        

        //Get initial image

        if($(kids[vars.currentSlide]).is('img')){

            vars.currentImage = $(kids[vars.currentSlide]);

        } else {

            vars.currentImage = $(kids[vars.currentSlide]).find('img:first');

        }

        

        //Show initial link

        if($(kids[vars.currentSlide]).is('a')){

            $(kids[vars.currentSlide]).css('display','block');

        }

        

        //Set first background

        slider.css('background','url("'+ vars.currentImage.attr('src') +'") no-repeat');



        //Create caption

        slider.append(

            $('<div class="nivo-caption"><p></p></div>').css({ display:'none', opacity:settings.captionOpacity })

        );			

		

		// Process caption function

		var processCaption = function(settings){

			var nivoCaption = $('.nivo-caption', slider);

			if(vars.currentImage.attr('title') != '' && vars.currentImage.attr('title') != undefined){

				var title = vars.currentImage.attr('title');

				if(title.substr(0,1) == '#') title = $(title).html();	



				if(nivoCaption.css('display') == 'block'){

					nivoCaption.find('p').fadeOut(settings.animSpeed, function(){

						$(this).html(title);

						$(this).fadeIn(settings.animSpeed);

					});

				} else {

					nivoCaption.find('p').html(title);

				}					

				nivoCaption.fadeIn(settings.animSpeed);

			} else {

				nivoCaption.fadeOut(settings.animSpeed);

			}

		}

		

        //Process initial  caption

        processCaption(settings);

        

        //In the words of Super Mario "let's a go!"

        var timer = 0;

        if(!settings.manualAdvance && kids.length > 1){

            timer = setInterval(function(){ nivoRun(slider, kids, settings, false); }, settings.pauseTime);

        }



        //Add Direction nav

        if(settings.directionNav){

            slider.append('<div class="nivo-directionNav"><a class="nivo-prevNav">'+ settings.prevText +'</a><a class="nivo-nextNav">'+ settings.nextText +'</a></div>');

            

            //Hide Direction nav

            if(settings.directionNavHide){

                $('.nivo-directionNav', slider).hide();

                slider.hover(function(){

                    $('.nivo-directionNav', slider).show();

                }, function(){

                    $('.nivo-directionNav', slider).hide();

                });

            }

            

            $('a.nivo-prevNav', slider).live('click', function(){

                if(vars.running) return false;

                clearInterval(timer);

                timer = '';

                vars.currentSlide -= 2;

                nivoRun(slider, kids, settings, 'prev');

            });

            

            $('a.nivo-nextNav', slider).live('click', function(){

                if(vars.running) return false;

                clearInterval(timer);

                timer = '';

                nivoRun(slider, kids, settings, 'next');

            });

        }

        

        //Add Control nav

        if(settings.controlNav){

            var nivoControl = $('<div class="nivo-controlNav"></div>');

            slider.append(nivoControl);

            for(var i = 0; i < kids.length; i++){

                if(settings.controlNavThumbs){

                    var child = kids.eq(i);

                    if(!child.is('img')){

                        child = child.find('img:first');

                    }

                    if (settings.controlNavThumbsFromRel) {

                        nivoControl.append('<a class="nivo-control" rel="'+ i +'"><img src="'+ child.attr('rel') + '" alt="" /></a>');

                    } else {

                        nivoControl.append('<a class="nivo-control" rel="'+ i +'"><img src="'+ child.attr('src').replace(settings.controlNavThumbsSearch, settings.controlNavThumbsReplace) +'" alt="" /></a>');

                    }

                } else {

                    nivoControl.append('<a class="nivo-control" rel="'+ i +'">'+ (i + 1) +'</a>');

                }

                

            }

            //Set initial active link

            $('.nivo-controlNav a:eq('+ vars.currentSlide +')', slider).addClass('active');

            

            $('.nivo-controlNav a', slider).live('click', function(){

                if(vars.running) return false;

                if($(this).hasClass('active')) return false;

                clearInterval(timer);

                timer = '';

                slider.css('background','url("'+ vars.currentImage.attr('src') +'") no-repeat');

                vars.currentSlide = $(this).attr('rel') - 1;

                nivoRun(slider, kids, settings, 'control');

            });

        }

        

        //Keyboard Navigation

        if(settings.keyboardNav){

            $(window).keypress(function(event){

                //Left

                if(event.keyCode == '37'){

                    if(vars.running) return false;

                    clearInterval(timer);

                    timer = '';

                    vars.currentSlide-=2;

                    nivoRun(slider, kids, settings, 'prev');

                }

                //Right

                if(event.keyCode == '39'){

                    if(vars.running) return false;

                    clearInterval(timer);

                    timer = '';

                    nivoRun(slider, kids, settings, 'next');

                }

            });

        }

        

        //For pauseOnHover setting

        if(settings.pauseOnHover){

            slider.hover(function(){

                vars.paused = true;

                clearInterval(timer);

                timer = '';

            }, function(){

                vars.paused = false;

                //Restart the timer

                if(timer == '' && !settings.manualAdvance){

                    timer = setInterval(function(){ nivoRun(slider, kids, settings, false); }, settings.pauseTime);

                }

            });

        }

        

        //Event when Animation finishes

        slider.bind('nivo:animFinished', function(){ 

            vars.running = false; 

            //Hide child links

            $(kids).each(function(){

                if($(this).is('a')){

                    $(this).css('display','none');

                }

            });

            //Show current link

            if($(kids[vars.currentSlide]).is('a')){

                $(kids[vars.currentSlide]).css('display','block');

            }

            //Restart the timer

            if(timer == '' && !vars.paused && !settings.manualAdvance){

                timer = setInterval(function(){ nivoRun(slider, kids, settings, false); }, settings.pauseTime);

            }

            //Trigger the afterChange callback

            settings.afterChange.call(this);

        });

        

        // Add slices for slice animations

        var createSlices = function(slider, settings, vars){

            for(var i = 0; i < settings.slices; i++){

				var sliceWidth = Math.round(slider.width()/settings.slices);

				if(i == settings.slices-1){

					slider.append(

						$('<div class="nivo-slice"></div>').css({ 

							left:(sliceWidth*i)+'px', width:(slider.width()-(sliceWidth*i))+'px',

							height:'0px', 

							opacity:'0', 

							background: 'url("'+ vars.currentImage.attr('src') +'") no-repeat -'+ ((sliceWidth + (i * sliceWidth)) - sliceWidth) +'px 0%'

						})

					);

				} else {

					slider.append(

						$('<div class="nivo-slice"></div>').css({ 

							left:(sliceWidth*i)+'px', width:sliceWidth+'px',

							height:'0px', 

							opacity:'0', 

							background: 'url("'+ vars.currentImage.attr('src') +'") no-repeat -'+ ((sliceWidth + (i * sliceWidth)) - sliceWidth) +'px 0%'

						})

					);

				}

			}

        }

		

		// Add boxes for box animations

		var createBoxes = function(slider, settings, vars){

			var boxWidth = Math.round(slider.width()/settings.boxCols);

			var boxHeight = Math.round(slider.height()/settings.boxRows);

			

			for(var rows = 0; rows < settings.boxRows; rows++){

				for(var cols = 0; cols < settings.boxCols; cols++){

					if(cols == settings.boxCols-1){

						slider.append(

							$('<div class="nivo-box"></div>').css({ 

								opacity:0,

								left:(boxWidth*cols)+'px', 

								top:(boxHeight*rows)+'px',

								width:(slider.width()-(boxWidth*cols))+'px',

								height:boxHeight+'px',

								background: 'url("'+ vars.currentImage.attr('src') +'") no-repeat -'+ ((boxWidth + (cols * boxWidth)) - boxWidth) +'px -'+ ((boxHeight + (rows * boxHeight)) - boxHeight) +'px'

							})

						);

					} else {

						slider.append(

							$('<div class="nivo-box"></div>').css({ 

								opacity:0,

								left:(boxWidth*cols)+'px', 

								top:(boxHeight*rows)+'px',

								width:boxWidth+'px',

								height:boxHeight+'px',

								background: 'url("'+ vars.currentImage.attr('src') +'") no-repeat -'+ ((boxWidth + (cols * boxWidth)) - boxWidth) +'px -'+ ((boxHeight + (rows * boxHeight)) - boxHeight) +'px'

							})

						);

					}

				}

			}

		}



        // Private run method

		var nivoRun = function(slider, kids, settings, nudge){

			//Get our vars

			var vars = slider.data('nivo:vars');

            

            //Trigger the lastSlide callback

            if(vars && (vars.currentSlide == vars.totalSlides - 1)){ 

				settings.lastSlide.call(this);

			}

            

            // Stop

			if((!vars || vars.stop) && !nudge) return false;

			

			//Trigger the beforeChange callback

			settings.beforeChange.call(this);

					

			//Set current background before change

			if(!nudge){

				slider.css('background','url("'+ vars.currentImage.attr('src') +'") no-repeat');

			} else {

				if(nudge == 'prev'){

					slider.css('background','url("'+ vars.currentImage.attr('src') +'") no-repeat');

				}

				if(nudge == 'next'){

					slider.css('background','url("'+ vars.currentImage.attr('src') +'") no-repeat');

				}

			}

			vars.currentSlide++;

            //Trigger the slideshowEnd callback

			if(vars.currentSlide == vars.totalSlides){ 

				vars.currentSlide = 0;

				settings.slideshowEnd.call(this);

			}

			if(vars.currentSlide < 0) vars.currentSlide = (vars.totalSlides - 1);

			//Set vars.currentImage

			if($(kids[vars.currentSlide]).is('img')){

				vars.currentImage = $(kids[vars.currentSlide]);

			} else {

				vars.currentImage = $(kids[vars.currentSlide]).find('img:first');

			}

			

			//Set active links

			if(settings.controlNav){

				$('.nivo-controlNav a', slider).removeClass('active');

				$('.nivo-controlNav a:eq('+ vars.currentSlide +')', slider).addClass('active');

			}

			

			//Process caption

			processCaption(settings);

			

			// Remove any slices from last transition

			$('.nivo-slice', slider).remove();

			

			// Remove any boxes from last transition

			$('.nivo-box', slider).remove();

			

			if(settings.effect == 'random'){

				var anims = new Array('sliceDownRight','sliceDownLeft','sliceUpRight','sliceUpLeft','sliceUpDown','sliceUpDownLeft','fold','fade',

                'boxRandom','boxRain','boxRainReverse','boxRainGrow','boxRainGrowReverse');

				vars.randAnim = anims[Math.floor(Math.random()*(anims.length + 1))];

				if(vars.randAnim == undefined) vars.randAnim = 'fade';

			}

            

            //Run random effect from specified set (eg: effect:'fold,fade')

            if(settings.effect.indexOf(',') != -1){

                var anims = settings.effect.split(',');

                vars.randAnim = anims[Math.floor(Math.random()*(anims.length))];

				if(vars.randAnim == undefined) vars.randAnim = 'fade';

            }

		

			//Run effects

			vars.running = true;

			if(settings.effect == 'sliceDown' || settings.effect == 'sliceDownRight' || vars.randAnim == 'sliceDownRight' ||

				settings.effect == 'sliceDownLeft' || vars.randAnim == 'sliceDownLeft'){

				createSlices(slider, settings, vars);

				var timeBuff = 0;

				var i = 0;

				var slices = $('.nivo-slice', slider);

				if(settings.effect == 'sliceDownLeft' || vars.randAnim == 'sliceDownLeft') slices = $('.nivo-slice', slider)._reverse();

				

				slices.each(function(){

					var slice = $(this);

					slice.css({ 'top': '0px' });

					if(i == settings.slices-1){

						setTimeout(function(){

							slice.animate({ height:'100%', opacity:'1.0' }, settings.animSpeed, '', function(){ slider.trigger('nivo:animFinished'); });

						}, (100 + timeBuff));

					} else {

						setTimeout(function(){

							slice.animate({ height:'100%', opacity:'1.0' }, settings.animSpeed);

						}, (100 + timeBuff));

					}

					timeBuff += 50;

					i++;

				});

			} 

			else if(settings.effect == 'sliceUp' || settings.effect == 'sliceUpRight' || vars.randAnim == 'sliceUpRight' ||

					settings.effect == 'sliceUpLeft' || vars.randAnim == 'sliceUpLeft'){

				createSlices(slider, settings, vars);

				var timeBuff = 0;

				var i = 0;

				var slices = $('.nivo-slice', slider);

				if(settings.effect == 'sliceUpLeft' || vars.randAnim == 'sliceUpLeft') slices = $('.nivo-slice', slider)._reverse();

				

				slices.each(function(){

					var slice = $(this);

					slice.css({ 'bottom': '0px' });

					if(i == settings.slices-1){

						setTimeout(function(){

							slice.animate({ height:'100%', opacity:'1.0' }, settings.animSpeed, '', function(){ slider.trigger('nivo:animFinished'); });

						}, (100 + timeBuff));

					} else {

						setTimeout(function(){

							slice.animate({ height:'100%', opacity:'1.0' }, settings.animSpeed);

						}, (100 + timeBuff));

					}

					timeBuff += 50;

					i++;

				});

			} 

			else if(settings.effect == 'sliceUpDown' || settings.effect == 'sliceUpDownRight' || vars.randAnim == 'sliceUpDown' || 

					settings.effect == 'sliceUpDownLeft' || vars.randAnim == 'sliceUpDownLeft'){

				createSlices(slider, settings, vars);

				var timeBuff = 0;

				var i = 0;

				var v = 0;

				var slices = $('.nivo-slice', slider);

				if(settings.effect == 'sliceUpDownLeft' || vars.randAnim == 'sliceUpDownLeft') slices = $('.nivo-slice', slider)._reverse();

				

				slices.each(function(){

					var slice = $(this);

					if(i == 0){

						slice.css('top','0px');

						i++;

					} else {

						slice.css('bottom','0px');

						i = 0;

					}

					

					if(v == settings.slices-1){

						setTimeout(function(){

							slice.animate({ height:'100%', opacity:'1.0' }, settings.animSpeed, '', function(){ slider.trigger('nivo:animFinished'); });

						}, (100 + timeBuff));

					} else {

						setTimeout(function(){

							slice.animate({ height:'100%', opacity:'1.0' }, settings.animSpeed);

						}, (100 + timeBuff));

					}

					timeBuff += 50;

					v++;

				});

			} 

			else if(settings.effect == 'fold' || vars.randAnim == 'fold'){

				createSlices(slider, settings, vars);

				var timeBuff = 0;

				var i = 0;

				

				$('.nivo-slice', slider).each(function(){

					var slice = $(this);

					var origWidth = slice.width();

					slice.css({ top:'0px', height:'100%', width:'0px' });

					if(i == settings.slices-1){

						setTimeout(function(){

							slice.animate({ width:origWidth, opacity:'1.0' }, settings.animSpeed, '', function(){ slider.trigger('nivo:animFinished'); });

						}, (100 + timeBuff));

					} else {

						setTimeout(function(){

							slice.animate({ width:origWidth, opacity:'1.0' }, settings.animSpeed);

						}, (100 + timeBuff));

					}

					timeBuff += 50;

					i++;

				});

			}  

			else if(settings.effect == 'fade' || vars.randAnim == 'fade'){

				createSlices(slider, settings, vars);

				

				var firstSlice = $('.nivo-slice:first', slider);

                firstSlice.css({

                    'height': '100%',

                    'width': slider.width() + 'px'

                });

    

				firstSlice.animate({ opacity:'1.0' }, (settings.animSpeed*2), '', function(){ slider.trigger('nivo:animFinished'); });

			}          

            else if(settings.effect == 'slideInRight' || vars.randAnim == 'slideInRight'){

				createSlices(slider, settings, vars);

				

                var firstSlice = $('.nivo-slice:first', slider);

                firstSlice.css({

                    'height': '100%',

                    'width': '0px',

                    'opacity': '1'

                });



                firstSlice.animate({ width: slider.width() + 'px' }, (settings.animSpeed*2), '', function(){ slider.trigger('nivo:animFinished'); });

            }

            else if(settings.effect == 'slideInLeft' || vars.randAnim == 'slideInLeft'){

				createSlices(slider, settings, vars);

				

                var firstSlice = $('.nivo-slice:first', slider);

                firstSlice.css({

                    'height': '100%',

                    'width': '0px',

                    'opacity': '1',

                    'left': '',

                    'right': '0px'

                });



                firstSlice.animate({ width: slider.width() + 'px' }, (settings.animSpeed*2), '', function(){ 

                    // Reset positioning

                    firstSlice.css({

                        'left': '0px',

                        'right': ''

                    });

                    slider.trigger('nivo:animFinished'); 

                });

            }

			else if(settings.effect == 'boxRandom' || vars.randAnim == 'boxRandom'){

				createBoxes(slider, settings, vars);

				

				var totalBoxes = settings.boxCols * settings.boxRows;

				var i = 0;

				var timeBuff = 0;

				

				var boxes = shuffle($('.nivo-box', slider));

				boxes.each(function(){

					var box = $(this);

					if(i == totalBoxes-1){

						setTimeout(function(){

							box.animate({ opacity:'1' }, settings.animSpeed, '', function(){ slider.trigger('nivo:animFinished'); });

						}, (100 + timeBuff));

					} else {

						setTimeout(function(){

							box.animate({ opacity:'1' }, settings.animSpeed);

						}, (100 + timeBuff));

					}

					timeBuff += 20;

					i++;

				});

			}

			else if(settings.effect == 'boxRain' || vars.randAnim == 'boxRain' || settings.effect == 'boxRainReverse' || vars.randAnim == 'boxRainReverse' || 

                    settings.effect == 'boxRainGrow' || vars.randAnim == 'boxRainGrow' || settings.effect == 'boxRainGrowReverse' || vars.randAnim == 'boxRainGrowReverse'){

				createBoxes(slider, settings, vars);

				

				var totalBoxes = settings.boxCols * settings.boxRows;

				var i = 0;

				var timeBuff = 0;

				

				// Split boxes into 2D array

				var rowIndex = 0;

				var colIndex = 0;

				var box2Darr = new Array();

				box2Darr[rowIndex] = new Array();

				var boxes = $('.nivo-box', slider);

				if(settings.effect == 'boxRainReverse' || vars.randAnim == 'boxRainReverse' ||

                   settings.effect == 'boxRainGrowReverse' || vars.randAnim == 'boxRainGrowReverse'){

					boxes = $('.nivo-box', slider)._reverse();

				}

				boxes.each(function(){

					box2Darr[rowIndex][colIndex] = $(this);

					colIndex++;

					if(colIndex == settings.boxCols){

						rowIndex++;

						colIndex = 0;

						box2Darr[rowIndex] = new Array();

					}

				});

				

				// Run animation

				for(var cols = 0; cols < (settings.boxCols * 2); cols++){

					var prevCol = cols;

					for(var rows = 0; rows < settings.boxRows; rows++){

						if(prevCol >= 0 && prevCol < settings.boxCols){

							/* Due to some weird JS bug with loop vars 

							being used in setTimeout, this is wrapped

							with an anonymous function call */

							(function(row, col, time, i, totalBoxes) {

								var box = $(box2Darr[row][col]);

                                var w = box.width();

                                var h = box.height();

                                if(settings.effect == 'boxRainGrow' || vars.randAnim == 'boxRainGrow' ||

                                   settings.effect == 'boxRainGrowReverse' || vars.randAnim == 'boxRainGrowReverse'){

                                    box.width(0).height(0);

                                }

								if(i == totalBoxes-1){

									setTimeout(function(){

										box.animate({ opacity:'1', width:w, height:h }, settings.animSpeed/1.3, '', function(){ slider.trigger('nivo:animFinished'); });

									}, (100 + time));

								} else {

									setTimeout(function(){

										box.animate({ opacity:'1', width:w, height:h }, settings.animSpeed/1.3);

									}, (100 + time));

								}

							})(rows, prevCol, timeBuff, i, totalBoxes);

							i++;

						}

						prevCol--;

					}

					timeBuff += 100;

				}

			}

		}

		

		// Shuffle an array

		var shuffle = function(arr){

			for(var j, x, i = arr.length; i; j = parseInt(Math.random() * i), x = arr[--i], arr[i] = arr[j], arr[j] = x);

			return arr;

		}

        

        // For debugging

        var trace = function(msg){

            if (this.console && typeof console.log != "undefined")

                console.log(msg);

        }

        

        // Start / Stop

        this.stop = function(){

            if(!$(element).data('nivo:vars').stop){

                $(element).data('nivo:vars').stop = true;

                trace('Stop Slider');

            }

        }

        

        this.start = function(){

            if($(element).data('nivo:vars').stop){

                $(element).data('nivo:vars').stop = false;

                trace('Start Slider');

            }

        }

        

        //Trigger the afterLoad callback

        settings.afterLoad.call(this);

		

		return this;

    };

        

    $.fn.nivoSlider = function(options) {

    

        return this.each(function(key, value){

            var element = $(this);

            // Return early if this element already has a plugin instance

            if (element.data('nivoslider')) return element.data('nivoslider');

            // Pass options to plugin constructor

            var nivoslider = new NivoSlider(this, options);

            // Store plugin object in this element's data

            element.data('nivoslider', nivoslider);

        });



	};

	

	//Default settings

	$.fn.nivoSlider.defaults = {

		effect: 'random',

		slices: 15,

		boxCols: 8,

		boxRows: 4,

		animSpeed: 1000,

		pauseTime: 3000,

		startSlide: 0,

		directionNav: true,

		directionNavHide: true,

		controlNav: true,

		controlNavThumbs: false,

        controlNavThumbsFromRel: false,

		controlNavThumbsSearch: '.jpg',

		controlNavThumbsReplace: '_thumb.jpg',

		keyboardNav: true,

		pauseOnHover: true,

		manualAdvance: false,

		captionOpacity: 0.8,

		prevText: 'Prev',

		nextText: 'Next',

		beforeChange: function(){},

		afterChange: function(){},

		slideshowEnd: function(){},

        lastSlide: function(){},

        afterLoad: function(){}

	};

	

	$.fn._reverse = [].reverse;

	

})(jQuery);